condition mean min max Sterile Leaflet 0.14040733333333333 0.0 0.421222 Fertile Leaflet with Sori 0.678023 0.0 1.62913 Primary Rachis 3.0368399999999998 2.0437 4.28085 Petiole 3.1613866666666666 1.8992 4.80724 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.18809399999999998 0.0 0.564282